In the end , the impedance matrix of any three - dimensional conducting object can be portioned into sub - matrices by the projection iterative method ( pim ) , the surface current and rcs can be calculated with convergent iterations , the wide - band electromagnetic scattering characteristics of three - dimensional conducting objects are also analyzed with the asymptotic waveform evaluation technique 最后应用投影迭代方法( pim )将三维导体目标的阻抗矩阵剖分成小矩阵,通过迭代计算出表面电流和雷达散射截面,并与渐近波形估计技术结合分析了三维导体目标的宽带电磁散射特性。
Evaluation techniques of scientific and technological project are basic part of scientific and technological project evaluation , which guarantee the objectivity and relativity of final evaluation outcome . evaluation techniques of scientific and technological generally speaking , evaluation techniques consist of evaluation methods and procedure , evaluation index system , synthetical model and evaluation expert 科技项目评估技术是科技项目评估活动的基本组成部分,是评估可信度的技术保证,它是包括评估准备、评估设计、信息获取、评估分析与综合、撰写评估报告等评估活动全过程的集成性技术方法体系,主要由评估程序与方法、评估指标体系、评估模型、评估专家等四大要素组成。
In this paper several currently primary evaluation techniques of information security are concisely analyzed . then three evaluation models , i . e . , the evaluation technique based on network information entropy , the security evaluation framework based on analytical hierarchy and the synthetical evaluation technique based on analytical indexes , are presented in order to conveniently measure and estimate the attack effect . finally , sonie problems which must be paid attention to in practice are pointed 本文总结了当前已经存在的主要信息安全的评估方法,在此基础上,从便于实际度量和计算的角度出发,提出了基于网络信息熵的评估技术、基于系统安全层次分析的安全评估框架和基于指标分析的网络攻击效果综合评估技术等三种评估模型,并分析了各自在使用中应注意的问题。
The fundamentals and the main method of the comprehensive evaluation technique of milling grade and the software design for implementing this technique and the software realization method are presented . demonstration analysis is made on the basic procedure of determining the rational milling grade by this software 介绍了合理入选品位综合评价技术的基本原理、主要方法,以及实现该项技术的软件设计和软件实现方法,并对应用该软件确定合理入选品位的基本过程进行了示例化分析。